Manual Suse openSUSE 11.3 (page 110 of 178) (English)

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NOTE: Using Wildcards in rm Commands

Wildcards in a rm command can be very useful but also dangerous: you might

delete more les from your directory than intended. To see which les would be

aected by the rm, run your wildcard string with ls instead of rm rst.

7.7 Editing Texts

In order to edit les from the command line, you will need to know the vi editor. vi

is a default editor which can be found on nearly every UNIX/Linux system. It can run

several operating modes in which the keys you press have dierent functions. This

does not make it very easy for beginners, but you should know at least the most

basic operations with vi. There may be situations where no other editor than vi is

available.

Basically, vi makes use of three operating modes:

command mode

In this mode, vi accepts certain key combinations as commands. Simple tasks

such as searching words or deleting a line can be executed.

insert mode

In this mode, you can write normal text.

extended mode

In this mode, also known as colon mode (as you have to enter a colon to switch

to this mode), vi can execute also more complex tasks such as searching and

replacing text.

In the following (very simple) example, you will learn how to open and edit a le with

vi, how to save your changes and quit vi.

7.7.1 Example: Editing with vi

NOTE: Display of Keys

In the following, nd several commands that you can enter in vi by just pressing

keys. These appear in uppercase as on a keyboard. If you need to enter a key

in uppercase, this is stated explicitly by showing a key combination including

the [Shift] key.

1 To create and open a new le with vi, enter

vi textfile.txt

By default, vi opens in command mode in which you cannot enter text.

2 Press [I] to switch to insert mode. The bottom line changes and indicates that

you now can insert text.

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Suse openSUSE 11.3 Manual

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